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cal mag foliar spray

This is especially useful if there are multiple plants in your system and only a few are showing signs of a deficiency. The deficient plants can be directly treated with a foliar spray without jeopardizing the other plants feeding schedule.

There is a great range of foliar nutrient feeds out there. Some reduce internode spacing in the vegetative stage by creating more branches, some increase the number of flowering sites while the plant is in the flower stage, and some help with the overall health of your plant by combating deficiencies, pests, and diseases. The list goes on.
Don’t Use a Foliar Spray if it Will be Detrimental to Your Growing Environment

A great tip is to use a foliar sprayer that can be adjusted to expel a fine mist. Again, the finer the mist, the better it will be for the plant to absorb. There are also spray bottles that can be used upside down, which is great for getting into tight spaces and spraying the bottom of leaves.
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Do Use Foliar Absorption to Your Advantage
Within the hydroponics industry, there are two main types of feeding regimes: organic and non-organic nutrients. Both these feeding systems pass nutrients into a plant’s vascular system via the roots. There is, however, another way into the plants vascular system. A secret way in.
The best time to use a foliar spray is at lights out. When a plant enters a dark period, its leaves take around 15 minutes to relax. It’s during this time—right after the lights turn off and before the leaves relax—that the stem and leaves are in their most effective absorption period.

Foliar feeding can be a powerful ally to supercharging your plants ready for bumper yields. However, there is a catch. If it is not carried out correctly, it can have such a detrimental effect on your plants that they could be dead within 24 hours.

A commonly overlooked method used in vegetative and flowering stages is foliar feeding, which is the act of spraying nutrients directly onto leaves.